| 摘要 |
PURPOSE:To obtain a rotary polyhedral mirror assembly body which is inexpensive and has high accuracy by pressing each side face area of a rotary polyhedral mirror, and adjusting the reflecting surface. CONSTITUTION:A rotary polyhedral mirror 10 is inserted and held by a flange 14 and 15 from both side faces, and fixed to a motor shaft 13 with a clamping nut 17. A ring-shaped groove 11 and a slot groove 12 which reaches this ring- shaped groove 11 from the edge of each adjacent reflecting surface are provided on both side faces of the rotary polyhedral mirror 10, and plural screws 16 corresponding to each reflecting surface of the rotary polyhedral mirror 10 are placed on the flange 14 and 15. The angle of each reflecting surface is adjusted singly by deforming the rotary polyhedral mirror 10 by the screw 16. |
